Home / 28,216.86-38,929.23-16,283.22

Finding the Fourth Proportional to 28,216.86, 38,929.23 and 16,283.22

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Solution

The fourth proportional to 28,216.86, 38,929.23 and 16,283.22 is: 22,465.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,216.86 : 38,929.23 = 16,283.22 : x
  2. Step 2: Convert to fraction form
    28,216.86/38,929.23 = 16,283.22/x
  3. Step 3: Cross multiply
    28,216.86x = 38,929.23 × 16,283.22
  4. Step 4: Simplify right side
    28,216.86x = 633,893,216.52
  5. Step 5: Solve for x
    x = 633,893,216.52/28,216.86
  6. Step 6: Final answer
    x = 22,465.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.